US 12,222,798 B2
Method of managing system health
Nack Woo Kim, Daejeon (KR); Byung Tak Lee, Daejeon (KR); Jun Gi Lee, Daejeon (KR); and Hyun Yong Lee, Daejeon (KR)
Assigned to Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed by ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR)
Filed on Oct. 13, 2022, as Appl. No. 17/965,537.
Claims priority of application No. 10-2021-0161460 (KR), filed on Nov. 22, 2021.
Prior Publication US 2023/0161653 A1, May 25, 2023
Int. Cl. G06F 11/00 (2006.01); G06F 18/2132 (2023.01); G06N 3/04 (2023.01); G06N 3/08 (2023.01)
CPC G06F 11/008 (2013.01) [G06F 18/2132 (2023.01); G06N 3/04 (2013.01); G06N 3/08 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method of managing health of a system by using a diagnosis model pre-learned based on multi-domain data including first and second domain data, the method comprising:
calculating a reconstruction missing value with respect to the second domain data;
determining a degree of degradation of the system on the basis of the reconstruction missing value;
predicting a second remaining useful life (RUL) prediction value y of the system on the basis of the second domain data, based on a result of the determination of the degree of degradation;
optimizing a degradation compensation function on the basis of a distribution of a first RUL prediction value y of the system predicted based on the first domain data in a pre-learning process of the diagnosis model; and
predicting a final RUL prediction value y′ obtained by compensating for the second RUL prediction value y, by using the optimized degradation compensation function.